Let's start by running the service before we call the microservices.

Configuration Files

---

app/gateway/manifest/config/config.yaml

server:  
  address:     ":8000"  
  openapiPath: "/api.json"  
  swaggerPath: "/swagger"  
  logger:  
    path: "./log"  
    file: "{Y-m-d}.log"  
    level: "all"  
    stdout: true

app/gateway/manifest/config/etcd.yaml

etcd:  
  address: "srv.com:2379"

Command File

---

app/gateway/internal/cmd/cmd.go

package cmd  
  
import (  
    "context"  
  
    "github.com/gogf/gf/v2/frame/g"
    "github.com/gogf/gf/v2/net/ghttp"
    "github.com/gogf/gf/v2/os/gcmd"
    "proxima/app/gateway/internal/controller/user"
    "proxima/app/gateway/internal/controller/words"
)  
  
var (  
    Main = gcmd.Command{  
       Name:  "main",  
       Usage: "main",  
       Brief: "start http gateway server",  
       Func: func(ctx context.Context, parser *gcmd.Parser) (err error) {  
          s := g.Server()  
          s.Group("/", func(group *ghttp.RouterGroup) {  
             group.Middleware(ghttp.MiddlewareHandlerResponse)  
             group.Group("/v1", func(group *ghttp.RouterGroup) {  
                group.Group("/", func(group *ghttp.RouterGroup) {  
                   group.Bind(user.NewV1())  
                   group.Bind(words.NewV1())  
                })  
             })  
          })  
          s.Run()  
          return nil  
       },  
    }  
)

Starting the Service

---

app/gateway/main.go

package main  
  
import (  
    "github.com/gogf/gf/contrib/registry/etcd/v2"  
    "github.com/gogf/gf/contrib/rpc/grpcx/v2"
    "github.com/gogf/gf/v2/frame/g"
    "github.com/gogf/gf/v2/os/gctx"  
    "proxima/app/gateway/internal/cmd"
)  
  
func main() {  
    var ctx = gctx.New()  
    conf, err := g.Cfg("etcd").Get(ctx, "etcd.address")  
    if err != nil {  
       panic(err)  
    }  
  
    var address = conf.String()  
    grpcx.Resolver.Register(etcd.New(address))  
  
    cmd.Main.Run(ctx)  
}

$ gf run .\main.go
build running pid: 16144
2024-12-10 15:30:30.788 [INFO] pid[16144]: http server started listening on [:8000]
2024-12-10 15:30:30.788 [INFO] {f0f10d9d4ec00f181b7a6f615f39d54b} swagger ui is serving at address: http://127.0.0.1:8000/swagger/
2024-12-10 15:30:30.789 [INFO] {f0f10d9d4ec00f181b7a6f615f39d54b} openapi specification is serving at address: http://127.0.0.1:8000/api.json
2024-12-10 15:30:30.817 [DEBU] {f0f10d9d4ec00f181b7a6f615f39d54b} service register: &{Head: Deployment: Namespace: Name:default Version: Endpoints:192.168.10.98:8000 Metadata:map[insecure:true protocol:http]}
2024-12-10 15:30:30.900 [DEBU] {f0f10d9d4ec00f181b7a6f615f39d54b} etcd put success with key "/service/default/default/default/latest/192.168.10.98:8000", value "{"insecure":true,"protocol":"http"}", lease "7587883327293376805"

  ADDRESS | METHOD |      ROUTE      |                               HANDLER                                |    MIDDLEWARE
----------|--------|-----------------|----------------------------------------------------------------------|--------------------
  :8000   | ALL    | /api.json       | github.com/gogf/gf/v2/net/ghttp.(*Server).openapiSpec                |
----------|--------|-----------------|----------------------------------------------------------------------|--------------------
  :8000   | ALL    | /swagger/*      | github.com/gogf/gf/v2/net/ghttp.(*Server).swaggerUI                  | HOOK_BEFORE_SERVE
----------|--------|-----------------|----------------------------------------------------------------------|--------------------
  :8000   | POST   | /v1/users/login | proxima/app/gateway/internal/controller/user.(*ControllerV1).Login   |
----------|--------|-----------------|----------------------------------------------------------------------|--------------------
  :8000   | POST   | /v1/words       | proxima/app/gateway/internal/controller/words.(*ControllerV1).Create |
----------|--------|-----------------|----------------------------------------------------------------------|--------------------
  :8000   | GET    | /v1/words/{id}  | proxima/app/gateway/internal/controller/words.(*ControllerV1).Detail |
----------|--------|-----------------|----------------------------------------------------------------------|--------------------

Entering the etcd container and executing the command to view:

$ etcdctl get "" --prefix --keys-only

/service/default/default/default/latest/{IP}:8000
/service/default/default/word/latest/{IP}:32001
/service/default/default/word/latest/{IP}:32002

As we can see, all three of our services have been successfully registered.